Exhibit 12.1

STATEMENT REGARDING

COMPUTATION OF RATIO OF

EARNINGS TO FIXED CHARGERS

	Successor												Predecessor
				Years Ended December 31,						Two-Month Period Ended December 31, 2009			Ten-Month Period Ended October 25, 2009			Years Ended December 31, 2008
	Six Months Ended June 30, 2013			2012		2011		2010
	(In millions except ratios)
Fixed charges:
Interest expensed and capitalized, amortization of debt issuance costs and discount on all indebtedness	$	12.1		$	23.2	$	25.8	$	23.3	$	1.3		$	31.2		$	76.5
Rent expense		1.5			2.8		2.8		4.1		0.8			3.9			4.5
Preferred stock dividend requirements of consolidated subsidiaries		—			—		—		—		—			6.3			13.3
Total fixed charges		13.6			26.1		28.6		27.4		2.1			41.4			94.2
Earnings:
Income (loss) from continuing operations before income taxes		(2.6	)		141.3		29.8		82.5		(0.5	)		841.8			(314.3	)
Add:
Fixed charges		13.6			26.1		28.6		27.4		2.1			41.4			94.2
Amortization of capitalized interest		—			—		—		—		—			0.0			0.1
Less:
Interest capitalized		—			—		—		—		—			—			—
Preferred unit dividend requirements of consolidated subsidiaries		—			—		—		—		—			(6.3	)		(13.3	)
Total earnings plus fixed charges	$	11.0		$	167.4	$	58.5	$	109.9	$	1.6		$	877.0		$	(233.2	)
Ratio of earnings to fixed charges		—			6.4x		2.0x		4.0x		—			21.2x			—

The term “fixed charge” means the sum of the following: interest expensed and capitalized, amortized premiums, discounts and capitalized expenses related to indebtedness; and an estimate of interest within rental expense (equal to one-third of rental expense). Management believes this is a reasonable approximation of the interest factor.

Where a dash appears, our earnings were negative and were insufficient to cover fixed charges during the period. Our deficiencies to cover fixed charges in each period presented were as follows:

	Successor		Predecessor
	Six Months Ended June 30, 2013	Two-Month Period Ended December 31, 2009	Years Ended December 31, 2008
	(In millions)
Deficiencies	$2.6	$0.5	$327.5